Thermal energy, anyone? This exclusive bundle contains seven awesome--and baffling--examples of thermodynamics in action. Create a thermal handprint. Make a metal disk jump with nothing but the heat of your hand. Build a snowman, watch him melt… and then build him again! Marvel at the perceived temperature of our Super Cool Slime and Instant Snow. These "hot" gifts will give your young scientist an unforgettable, hands-on introduction to thermal energy.